The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 15, 2018

Filed:

Mar. 22, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Timothy J. Fisher, Cypress, TX (US);

Lincoln T. Simmons, Houston, TX (US);

Adalberto G. Yanes, Rochester, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 3/06 (2006.01); G06F 12/1009 (2016.01);
U.S. Cl.
CPC ...
G06F 3/061 (2013.01); G06F 3/0655 (2013.01); G06F 3/0688 (2013.01); G06F 12/0246 (2013.01); G06F 12/1009 (2013.01); G06F 2212/65 (2013.01); G06F 2212/7201 (2013.01);
Abstract

A method, according to one embodiment, includes: receiving a recirculation command; performing a coarse page lookup to determine valid ones of logical pages to be recirculated; requesting performance of a fine page lookup on source physical addresses containing the valid logical pages to verify the valid logical pages; and sending write commands corresponding to verified valid logical pages from the fine page lookup. Other systems, methods, and computer program products are described in additional embodiments.


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